My days at home are boring and flavorless.

我在家的日子枯燥而无味。

My mother's chicken soup is completely flavorless.

我妈做的鸡汤毫无味道。

John likes to eat these flavorless things.

约翰就喜欢吃这些无滋无味的东西。

Life became gray and flavorless.

生活变得索然无味。

It also makes the juice completely flavorless.

这亦使橙汁变得完全无味。

After three days without reading, talk becomes flavorless.

三天不读书，谈话显庸俗。

After three days without reading, talk becomes flavorless.

三日不读书，便觉言无味。

Spinach is a healthy — and flavorless — addition to any smoothie.

菠菜是一种健康——无味——可添加到各种思慕雪饮品中。